Playground wood chips are a softer wood fiber that does not splinter and shipped in from northern Arizona pine trees. They are screened to size (.5” - 1.5” in length, and .25” - .5” in width) to meet ADA, CPSC and ASTM standards for accessibility, shock absorbency and slip resistance (for wheelchair accessibility). They move around for a softer fall, easily kicked outside of borders and can blow around especially in high wind areas like Alpine, Ramona and local mountains.